Env and Stacks/Playground repository (draft)

This page is a draft only
It is still under construction and content may change. Do not rely on the information on this page. This document will eventually contain a roadmap for implementing the Playground repository. It will outline what the playground repository is and what groups, manpower, and other resources will be needed in order to implement it.

The Playground Repository gives contributors a place to host packages that are not up to the standards of the main Fedora Repository but may still be useful to other users. For now the playground repository contains both packages that are destined for eventual inclusion into the main Fedora Repositories and packages that are never going to make it there. Users of the repository should be willing to endure a certain amount of instability to use packages from here.

All packages in Playground must play nice - no bad licenses, no proprietary software, no patented software.

Description

Policies

• Packages must follow the Legal Guidelines. In particular, the license for all packages must be approved in the Legal Guidelines.
• Packages may violate other Fedora Packaging Guidelines.

How the repository will work

Packages for the repository are built in copr. The copr owner can mark the repository as a whole as being part of the Playground Repository. Packages successfully built for marked copr's are copied into the Playground Repository. [marcela] Who is copr owner? The project owner on copr? We need additional feature in copr for "mark as worth of Playground".

Identified needs

Groups to Coordinate with	How necessary	Need
Infra	Necessary	Disk space for the yum repositories (Open question -- is this mirrored?)
Infra/Copr devs	Very nice to have	Copr deployment that's considered reliable enough to build packages for this repo
Copr devs	Necessary	Ability to mark an individual copr for inclusion in the playground repository
Copr devs	Optional but nice to have	Build from a git repo url and revision hash

Open Questions

We'll need to answer these questions and by their answers, flesh out the [#Description] and add additional work items to the [#Identified_needs] section.

• deltarpms?
• signing?
• how do updates work (rolling? bodhi? Will we constantly be regenerating the repodata [like the rawhide build repo?])
  • rolling + constantly regenerating repodata
  • one repo per Fedora release + arch
  • daily push
  • bodhi - no need yet (it's just Playground)
• is there a testing repo?
• does it need adding to mirrormanager?
• will fedup support upgrades with packages there?
• Does it need to be mashed in order to get multilib support?
• self hosting (all packages needed to build the packages are in the repo)?
• Is there any review of repos/packages in the repos?
• Does the review differ depending on who is building the package (cla+1 vs in the packager group)?
• Do we allow conflicts with packages in the main repo?
• Do we allow replacement of packages in the main repo?
  • Do we allow "backdoor replacement" of packages in the main repo? ie: Let's say I have a package in the playground repo: NetworkManager2.1. And that conflicts with NetworkManager. Is that allowed? Is it allowed as long as it doesn't have any virtual provides/obsoletes that would automatically allow it to replace the package in the main repo?
• Do we allow conflicts between packages in the Playground Repo?
• Do we allow replacement of other packages in the Playground Repository? (How do we stop this in our implementation?)
  • Do we allow "backdoor replacement" in the playground repo?
• How do we deal with multiple versions of same package provided by different coprs?

Problems

1 Big repo vs multiple small ones

Ideally users would enable just one "playgrond" repo and would get all nice updates. However this has several issues:

* We'd need support in rel-eng for multiple versions of identical package (problems with composes)
* Users would get *all* playground packages not just ones they are interested in
* There is no way to specify which packages from playground to install (or they are inadequate)

Most likely better approach is repo-of-repos where:

* Each project has a copr repo (already done since that's how they are built)
* Playground repo contains these repo files
* We can add GUI support for enabling on per-feature basis (i.e. install playground repo for "Dajngo 1.6" or "Chromium" or ...)